Eric Roch also asked the question earlier this year EricRoch也在今年早些时候问过这个问题
The size of a postage stamp, each audio field-guide holds pre-recorded libraries from the world's foremost sound recordists-such as Jean Roch é and Cornell. 每一个邮票大小的存储卡记录的野外指导库都是从自于世界顶级录音者诸如杰恩。洛奇和柯纳的杰作。每个都存有几百种而且还有空间给你存一周的个人记录。
Eric Roch seems to agree, one of the problem he sees is ROI EricRoch看来是赞成的,他所看到的一个问题是ROI
Application of the Supporting and Protecting Technology of Guniting and Anchoring in Sloping Surface Protection with High and Steep Roch Edge Slope 喷锚支护技术在高陡岩石边坡坡面防护中的应用
Potash deposit and potassium-bearing roch simultaneously. 寻找钾盐矿床与含钾岩石并行;
Mechanism Research of Roch Failure Induced by Unloading Confining Pressure 围压卸荷诱发岩石破坏机理研究